An oil field truck is used to make a transfer at oil-storage tanks in Williston, N.D., in 2014. It was atop tanks like these that oil worker Dustin Bergsing, 21, was found dead.
Eric Gay/AP
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What We Talk About When We Talk About Gay Marriage

Colorado educators take part in a concealed carry course in Englewood, Colo., on Nov. 8. The course is open to all state school employees. Participants who complete the training are eligible to apply for a permit to carry a handgun.
MATTHEW STAVER/Landov
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Colorado Pushes For Concealed Guns In K-12 Schools

Quinault Indian Nation President Fawn Sharp stands on the docks as tribal crabbers unload their catch. The tribe has vowed to fight the oil train-to-ship terminals proposed for Grays Harbor.
Ashley Ahearn/KUOW
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Washington State County Unsure If It Can Take Wave Of North Dakota Crude

Abortion-rights supporters outside the Supreme Court in January for the annual March for Life. This week North Dakota and Colorado struck down ballot measures restricting abortion, while Tennessee passed an initiative that may result in restricted rights.
Alex Wong/Getty Images
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Two Of Three States Reject Ballot Measures Restricting Abortion

A fireball goes up at the site of an oil train derailment in Casselton, N.D., in this Dec. 30 photo. The fiery crash left an ominous cloud over the town and led some residents to evacuate.
Bruce Crummy/AP
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